Abstract: Electro coiled tubing (ECT) can be utilized to provide electrical power to equipment in wells. A long length of ECT is provided with protrusions welded on the inside of the tubing at selected intervals to form support shoulders. Anchors with a load shoulder are attached to the electrical cable enclosed in the tubing such that the load shoulder contacts the support shoulder created by the welded protrusion. The weight of the electrical cable can then be transferred to the tubing via the contact between the load shoulder and the support shoulder. The protrusions are welded to the tubing and the anchors are attached to the cable during the manufacturing process.

Abstract: Electro coiled tubing (ECT) can be utilized to provide electrical power to equipment in wells. A long length of ECT is provided with protrusions welded on the inside of the tubing at selected intervals to form support shoulders. Anchors with a load shoulder are attached to the electrical cable enclosed in the tubing such that the load shoulder contacts the support shoulder created by the welded protrusion. The weight of the electrical cable can then be transferred to the tubing via the contact between the load shoulder and the support shoulder. The protrusions are welded to the tubing and the anchors are attached to the cable during the manufacturing process.

Abstract: A system, method and apparatus for incorporating a fiber optic cable into a power cable for an electrical submersible pump is disclosed. The fiber optic components are protected from damage during handling of the cable with pump cable components, such as lead sheaths and jacketing materials. The optical fibers are protected from damage due to corrosive oil well chemicals and gasses, as well as protected from decompression damage.

Abstract: An electrical submersible well pump assembly having a pump, a pump motor, and a seal section. The motor drives the pump via shafts rotatingly coupled with a coupling assembly. The coupling assembly includes an alignment device that maintains the shaft ends in coaxial alignment. The alignment device compressibly engages one or both of the shafts. The alignment device may be an elongated member having slots cut along its length on one or both ends configured to compress when inserted into a bore coaxially formed into the shaft ends within the coupling assembly.

Abstract: A power line for an electrical submersible pump has three metallic impermeable tubes. A single electrical conductor is located within each of the tubes. Each conductor has at least one elastomeric insulation layer surrounding it. An annular portion of the insulation layer of each of the electrical conductors is in tight contact with the tube to form a seal. The annular portions may be annular crimps formed in the tube at intervals. The annular portion could also be a continuous seal caused by swelling of the insulation layer due to contact with a hydrocarbon.

Abstract: Devices and methods for construction of a stator for a progressive cavity pump without the off centering effect created by gravity. A stator mold is assembled by placing a center section, or core, inside an outer stator housing tube to form a mold assembly. The core has a narrow central portion and a cone-shaped end portion at each axial end. The end assemblies provide an interference fit within the outer housing tube and retain the narrow central portion centrally within the housing tube. A mold space, or injection space, is defined between the housing tube and the core. Traveling spacers are disposed within the mold injection space and are capable of lateral movement therewithin. During injection molding and curing, the mold assembly is oriented in a substantially horizontal position and rotated about its central longitudinal axis.

Abstract: The present invention provides spoolable continuous composite coiled tubings made from substantially nonmetallic materials for use in wellbores. The composite coiled tubing has a selected thickness and a through passage. The composite coiled tubing preferably includes a plurality of layers of composite materials. A fiber optic string is disposed in the composite coiled tubing, preferably during the manufacture of the composite tubing. A plurality of spaced apart sensor elements on the fiber optic string provide measurements of one or more downhole parameters of interest during the wellbore operations. The fiber optic string may be embedded or placed along the composite coiled tubing. A liner may be disposed inside the composite coiled tubing to isolate the inner surface of the coiled tubing and the fiber optic string from the drilling or the wellbore fluid passing through the coiled tubing.